NCT05494307

Brief Summary

A randomized, open-label, multicenter study to compare the efficacy and safety of terbutaline plus danazol compared to danazol monotherapy for the second-line treatment of adults with corticosteroid-resistant or relapsed primary immune thrombocytopenia (ITP).

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
228

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Sep 2022

Shorter than P25 for phase_2

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 6, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 9, 2022

Completed
23 days until next milestone

Study Start

First participant enrolled

September 1, 2022

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2024

Completed
Last Updated

August 9, 2022

Status Verified

August 1, 2022

Enrollment Period

1 year

First QC Date

August 6, 2022

Last Update Submit

August 6, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Overall response

    Achieving a platelet count ≥ 30 × 10\^9/L confirmed on at least two separate occasions (at least 7 days apart), at least a doubling of the baseline platelet count without any other ITP-specific treatment and the absence of bleeding.

    From date of randomization until 1 years or the end of follow-up

Secondary Outcomes (11)

  • Sustained response

    From date of randomization until 1 years or the end of follow-up

  • Complete response

    From date of randomization until 1 years or the end of follow-up

  • Remission

    at 12-month follow-up

  • Time to response

    From date of randomization until 1 years or the end of follow-up

  • Duration of response

    From date of randomization until 1 years or the end of follow-up

  • +6 more secondary outcomes

Study Arms (2)

Terbutaline plus danazol

EXPERIMENTAL

Terbutaline: A dose of 2.5 mg three times daily for 16 weeks Danazol: A dose of 200 mg twice daily for 16 weeks

Drug: TerbutalineDrug: Danazol

Danazol monotherapy

ACTIVE COMPARATOR

Danazol: A dose of 200 mg twice daily for 16 weeks

Drug: Danazol

Interventions

Orally terbutaline at a dose of 2.5 mg three times daily for 16 weeks

Terbutaline plus danazol

Orally danazol at a dose of 200 mg twice daily for 16 weeks

Danazol monotherapyTerbutaline plus danazol

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Not achieving a sustained response to therapy with full-dose corticosteroids for a duration of at least 4 weeks or relapsed during the process of corticosteroid tapering or discontinuation;
  • Platelet counts \<30×10\^9/L or platelet counts \< 50×10\^9/L and significant bleeding symptoms (WHO bleeding scale 2 or above);
  • Willing and able to sign written informed consent.

You may not qualify if:

  • Pregnant or lactating women;
  • Secondary ITP (have a known diagnosis of connective tissue diseases, malignancy, active infection, HIV infections or hepatitis B virus or hepatitis C virus infections);
  • Received drugs affecting the platelet counts within 6 months before the screening visit (e.g., chemotherapy, anticoagulants, etc);
  • Severe medical condition (lung, heart, hepatic or renal disorder);
  • Patients who are deemed unsuitable for the study by the investigator.
  • Patients who had hypertension, diabetes mellitus, hyperthyroidism or coronary heart disease.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Purpura, Thrombocytopenic, Idiopathic

Interventions

TerbutalineDanazol

Condition Hierarchy (Ancestors)

Purpura, ThrombocytopenicPurpuraBlood Coagulation DisordersHematologic DiseasesHemic and Lymphatic DiseasesThrombotic MicroangiopathiesThrombocytopeniaBlood Platelet DisordersCytopeniaHemorrhagic DisordersAutoimmune DiseasesImmune System DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsSkin ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

EthanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsAminesPregnadienesPregnanesSteroidsFused-Ring CompoundsPolycyclic Compounds

Study Officials

  • Xiao-Hui Zhang, MD

    Peking University People's Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Vice President of Peking University Institute of Hematology

Study Record Dates

First Submitted

August 6, 2022

First Posted

August 9, 2022

Study Start

September 1, 2022

Primary Completion

September 1, 2023

Study Completion

February 28, 2024

Last Updated

August 9, 2022

Record last verified: 2022-08